I-Hydrofluoric Acid (HF)
Iinkcukacha zeMveliso
Iinkcukacha zinikiwe
Ulwelo olungafihliyo Umxholo ≥ 35% -55%
(Ubungakanani bereferensi yesicelo 'ukusetyenziswa kwemveliso')
Irhasi yeHydrogen fluoride iyanyibilika emanzini, kwaye isisombululo sayo samanzi sibizwa ngokuba yi-hydrofluoric acid.Imveliso idla ngokuba yi-35% -50% ye-hydrogen fluoride isisombululo esinamanzi, eyona nto iphezulu inokufikelela kuma-75%, kulwelo olucacileyo lomsi olungenambala.Ivumba elirhabaxa, eliguquguqukayo, elimhlophe emoyeni.Ngamandla aphakathi e-asidi ye-inorganic edla kakhulu kwaye inokonakalisa iglasi kunye ne-silicates ukwenza i-silicon tetrafluoride enegesi.Iyakwazi ukusebenzisana nesinyithi, i-oxides yensimbi kunye ne-hydroxides ukwenza iityuwa ezahlukeneyo, kodwa umphumo awunamandla njenge-hydrochloric acid.Igolide, iplatinam, ilothe, iparafini nezinye iiplastiki azinakuyisebenzisa, ngoko ke kunokwenziwa izikhongozeli.Igesi ye-Hydrogen fluoride i-polymerized ngokulula ukwenza (HF) 2 (HF) 3 · iimolekyuli ze-homochain, kwaye kwimeko yolwelo, iqondo le-polymerization liyenyuka.Gcina kwizikhongozeli ezenziwe ngelothe, iwax okanye iplastiki.Inetyhefu kakhulu kwaye inokuba nesilonda xa udibana nolusu.
I-EVERBRIGHT® 'iya kubonelela ngokulungelelanisiweyo: umxholo/ubumhlophe/ubungakanani besuntswana/PHvalue/umbala/isimbo sokupakisha/ iinkcukacha zokupakisha kunye nezinye iimveliso ezithile ezilungele iimeko zakho zokusebenzisa, kunye nokubonelela ngeesampulu zasimahla.
IParameter yeMveliso
7664-39-3
231-634-8
20.01
Inorganic acid
1.26g/cm³
inyibilika emanzini
120(35.3%)
-83.1(nyulu)
Ukusetyenziswa kweMveliso
Ukukha isanti yequartz
Isebenza ngcono xa iphathwa nge-hydrofluoric acid, kodwa ugxininiso oluphezulu luyafuneka.Xa kwabelwana nge-sodium disulfite, i-concentrations ephantsi ye-hydrofluoric acid ingasetyenziswa.Uxinzelelo oluthile lwe-hydrochloric acid kunye nesisombululo se-hydrofluoric acid saxutywa kwi-quartz mortar ngexesha elifanayo ngokomlinganiselo;Inokunyangwa ngesisombululo se-hydrochloric acid kuqala, ihlanjwe ize iphathwe nge-hydrofluoric acid, iphathwe kubushushu obuphezulu kangangeeyure ezingama-2-3, ize icocwe kwaye icocwe, enokususa ngempumelelo ukungcola kunye neeoksidi kumphezulu wesanti yequartz kwaye iphucule. ukucoceka kunye nomgangatho wesanti yequartz.
Unyango lomphezulu wesinyithi
Susa ukungcola okungaphezulu kwe-oksijeni, i-hydrofluoric acid i-asidi ebuthakathaka, efana namandla kwi-fomic acid.Ukugxininiswa ngokubanzi kwe-hydrofluoric acid ekhoyo ngokurhweba yi-30% ukuya kwi-50%.Iimpawu eziphambili zokususa i-hydrofluoric acid rust zezi zilandelayo:
(1) Inokunyibilikisa iikhompawundi ezinesilicon, i-aluminiyam, ichromium kunye nezinye iioksidi zetsimbi nazo zinokunyibilika okulungileyo, okuqhele ukusetyenziselwa ukuphoswa kwentsimbi, intsimbi engatyiwa kunye nezinye izinto zokusebenza.
(2) Kwizixhobo zokusebenza zentsimbi, i-acid ephantsi ye-hydrofluoric ingasetyenziselwa ukususwa komhlwa.Isisombululo se-Hydrofluoric acid kunye ne-70% yoxinaniso lunempembelelo ye-passivation kwintsimbi
3
(4) Ilothe ngokuqhelekileyo ayidliswa yihydrofluoric acid;I-Nickel inokumelana okuqinileyo kwizisombululo ze-hydrofluoric acid kunye noxinzelelo olukhulu kune-60%.I-Hydrofluoric acid inetyhefu kakhulu kwaye iyaguquguquka, kwaye isetyenziselwa ukuthintela ukudibana kwabantu kunye nolwelo lwe-hydrofluoric acid kunye negesi ye-hydrogen fluoride, itanki yokufaka itywinwa kakuhle kwaye inesixhobo sokuphefumla esilungileyo, kwaye amanzi amdaka acociweyo anokukhutshwa.
Ukulungiswa kwegraphite
I-Hydrofluoric acid yi-asidi eyomeleleyo enokuthi iphendule malunga naluphi na ukungcola kwi-graphite, kwaye i-graphite inokumelana ne-asidi efanelekileyo, ngokukodwa inokuxhathisa i-hydrofluoric acid, emisela ukuba i-graphite inokuhlanjululwa nge-hydrofluoric acid.Inkqubo ephambili yendlela ye-hydrofluoric acid kukuxuba i-graphite kunye ne-hydrofluoric acid, kwaye iphendule i-hydrofluoric acid kunye nokungcola ixesha elithile ukuvelisa izinto ezinyibilikayo okanye eziguquguqukayo, emva kokuhlamba ukususa ukungcola, ukuchithwa kwamanzi kunye nokomisa ukufumana i-graphite ecocekileyo.
Ekhethekileyo kwimigodi yomhlaba enqabileyo
Indlela yokulungiswa kwe-anhydrous enqabileyo yomhlaba i-fluoride kukukhupha i-hydrated enqabileyo yomhlaba i-fluoride ukusuka kwisisombululo esimanzi, kwaye emva koko ikhuphe amanzi okanye i-fluorinate yomhlaba onqabileyo we-oxide ngokuthe ngqo nge-agent e-fluorinating.I-solubility ye-fluoride yomhlaba enqabileyo incinci kakhulu, kwaye inokugqithiswa kwi-hydrofluoric, i-sulfuric, okanye i-nitric acid izisombululo zomhlaba onqabileyo usebenzisa i-hydrofluoric acid (i-precipitate i-precipitated ngendlela ye-hydrated fluoride).
TPT-LCD Ukucutha iSkrini (ibakala lombane)
Ngaphantsi kokukhuselwa kwe-photoresist kunye ne-edge glue, i-concentration ye-hydrofluoric acid ilungiswa, inani elithile le-nitric acid, i-concentrate sulfuric acid kunye ne-hydrochloric acid yongezwa, kunye neemeko ezincedisayo ze-ultrasonic zongezwa, isantya se-etching ngokucacileyo siphuculwe.Ukucoca okutshintshisanayo kunokunciphisa ngokufanelekileyo uburhabaxa bomphezulu kunye nokunciphisa imvula yeziqhoboshelo zomphezulu omhlophe.Ingxaki yendawo erhabaxa kunye nemvula yokubambelela emhlophe isonjululwe.
I-Fiber corrosion
I-Hydrofluoric acid izaliswe i-corrosion photonic crystal fiber (PCF).I-Hydrofluoric acid izaliswe kwiimbobo ze-photonic crystal fiber ezoluliweyo.Ngokutshintsha isakhiwo sayo secandelo lomnqamlezo, i-photonic crystal fiber enesakhiwo esithile iyaphuhliswa kwaye i-optical conductivity yayo iyatshintshwa.Iziphumo zibonisa ukuba ilahleko yokuvuza kunye nelahleko esasazwayo iyancipha ngokunyuka kwedigri ye-porosity corrosion, i-coefficient engahambelaniyo inyuka ngokucacileyo, isalathiso esisebenzayo se-refractive ye-core mold kunye ne-refractive index efanayo yokuncipha kwe-cladding ngokuhambelanayo, kunye nesantya sokusasazeka kweqela. nayo iyatshintsha.
